Honinbo Doetsu

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Honinbo Doetsu
Name Honinbo Doetsu
Kanji 本因坊道悦
Born 1636
Died 1727
Birthplace Japan Japan
Teacher Honinbo Sanetsu
Rank 8 dan

Honinbo Doetsu (本因坊道悦, 1636 - 1727) was a Japanese professional go player, who became the third head of the Honinbo house. His surname was Niwa, and he used a Buddhist name Nissho.

He was born in Matsuzaka, currently in Mie Prefecture. He was adopted as Honinbo heir in 1658. He was promoted to 7 dan in 1666. His final ranking was as 8 dan.

He challenged Yasui Sanchi to a long match. In the end 20 games were played, out of a theoretical 60, over seven years starting in 1668. Under the beating-down rules (see jubango) he forced Yasui down from sen (Black in each game, for a theoretical difference of two levels) to sen-ai-sen (Black-White-Black).

He was also active in oshirogo from 1660, for 15 years. In 1677 he stepped down as Honinbo head, handing over to Dosaku. He did however still meet an official requirement to play oshirogo; he was given a personal allowance of 20 koku of rice.[1] He is given the credit for establishing standard dimensions for go equipment.[2]

Preceded by
Honinbo Sanetsu
Honinbo
16581677
Succeeded by
Honinbo Dosaku

[edit] Source

  • GoGod Encyclopedia

[edit] Notes

  1. ^ Go Monthly Review 1963/5, p.55
  2. ^ ibid.


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